Baker&#39;s oven.



H. GOTTSCHALK.

BAKER'S OVEN.

APPucATloN msn mw 2, 1913 Patented' Apr. 27, 1915.

baked product.

Atmrrnn sra'rns N Parnu-T o YORK.

HGO GOTTSCHALK, OF BURNHAM, PENNSYLVANIA, ASSIGNORTO GTTSCHTA'IK AUTO- MATIC BRICK OVEN COMPANY, INC., OF NEWvYORK,

N. Y.,'A 'CORPORATION 0F NEW BAKERS UVEN.

Listen.

Specicaton of Letters Patent.

Patented A131527, 1915.

Application led May 2, 1913. Serial No. 765,027;

'To all @0.7mm it muy concern Be it knovvn that I, HUGO GoT'rsoHALK, a citizen vof the" United States, residing at Burnham, county of Mifflin, State of Pennsylvanial` have invented a nevvand useful Bakers specification. v

rl`his invention relates to bakers ovens and more particularly to an oven in vvhich the dough is fed into the oven at one side and is deliveredfrom the opposite side as a lt has for an object vto provide anoven having a conveyer mechanism operatively7 mounted therein and passingfrom one side thereof to the other, the said mechanism serving to support and carry the dough containers through the oven. It is also arranged A in such a manner that it may be brought to rest during the baking operation and its position changed relative to the hearthjn or der to bring the dough containers into contact relation with' the floor of the oven during the baking process.

It has lfor a further object to provide a pressure'iluid control device operating in conjunction vvith the Aaforesaid conveyer mechanism, andvhichisset into operation at certain predetermined timesto vary the relative positions of the conveyer mechanism vvith respect to the hearth or floor of the oven. i

It further consists of other novel features of construction, all as.. Will be hereinafter fully set forth. v

For the purpose of illustrating the invention, I have drawings one form thereof which is at present preferred by me,A although it is to be understood` that the various instrumentalities of which my 'invention consists can be variously arranged and organized, and that my invention is not limited tothe precise arrangement and organization of these 1nstrumentalities as herein shown and described.

Figure l represents a vertical section'on line Fig. 2, of an oven embodying my invention. Fig. 2 represents an end elevation of the same. Fig. 3 represents an enlarged ydetail of the receiving end of the oven. l,

Similar numerals of reference indicate corresponding partsin the figures.

Referringto the dra wings l designates the Oven, of which the following is a' in .ord-.erro confine and shovvn in the accompanying inclosing Wall of a bakers oven formed of brick Work or like material and which is provided with the longitudinally arranged oven chamber This chamber Q in the present instance has communication at one end with the mixing room of a bakery whileinto the oven at one end and deliver it at the* other end as a baked product. thus avoiding the confusion and delay incident to feeding and delivering the dough and product at the same end.

6 designates the oven flooro1:.bea-nth which is formed vvitlran inclined ivay T at 'each end prevent the escape of heat ivhen one or the other of the doors 5 are open. Longitudinally disposed of the hearth 6 there is a pair of channels S which 'extend a suitable distance below the floor of the oven and serve to receive the supports or will hereinafter be described. In my preferred construction there is one beam 9 located in eaclrchannel 8 and preferably projecting therefrom at each end in order to seat upon a movable support independent of the oven Walls l. As here shoivn. the ends of the respective beams 9 are'carried by a piston rod l0 having its piston or plunger 1l slidingly mounted Within a fixed cylinder l2. The cylinders l2 are connected to and have communication at or near the bottom with a pressure. fiuid line or pipe 13, control of which is had by means of the valve 1l. This valve 1l is preferably of the three-way type to exhaust the line at certain times and is located adjacent the inlet opening 3 or feeding end of the oven and in a position convenient for ready operation. Then the valve ll is open pressure fluid from a suitable source is simultaneously admitted beneath all of the pistons 1l consequently moving the rods l()v and thereby raising the beams 9. so thatthe conveyer mechanism may be brought above the floor of the rrven.

13 designates suitable posts or standards` secured to cach beam 9 at certain intervals and preferably of such lengths as to cause theA ronvcyer chain 1G to closely follow the contour of the hearth or oven floor. It will '8o beams 9 for a conveyer mechanism which I Vsagging intermediate the ends f 'l thereof. Each Standard .15 .is also provided 'with'v an:

'carry 'the conveyer chains-16 land )prevent idler-18 for-fthe' return-'portion of-Q -th'e con-i sprockets 191g beingjournaled in-j blocks 20'-v rn'ountjedj in. 'thefslots21 of -thefstandards v22. stud '23o'rtheflikeis threaded--into'A each standard and barsj'against the.; respective A t blocks 2O sothatjithe proper tensixonui's always' I,naintained in blotll'fconveyer chains.

designates' the 'driving sprocket .Which Per@ troie @the :belt .25 0r equira* ,flent'n'ieai'fsjy ates' a reed table positioned' adja-p design l'cent the inletopening '3 and vpreferably'havalinement with the inclined-hearth or oven surface Asecondtable of similar fconstruction is -located ad]a'c'ent the diss togethenfas'shown'at 31;4 inanyv well known [number-"bf pans for thespurpose intended.

sp'ace'the same so that there is s'ufcient l employed as this forms no part of'mydinvenfinanner to, form'faset' or unitl comprising -a :In-' '.mountfin'gf these -pansfO I preferablyclearance between. the adjacentxpans to. receivethelconveyer chains 16 and allow the straps B1 to :rest-upon'the said chains` and the Weight of the set o f pans'when filledl with Vdough' is sufficient to; create the necessary ""friction lfor the lconveyer'to carry the pans int'o and ,through the'oven.

32 designates a belt shift for bringing the conveyer to'V rest 'at certain predetermined times as will later be explained.-

Itwi-ll of course' be understood that any desired 'heating -means for the-oven may be t'ion. h

4The operatic: of. the oven is as follows The conveyer mechanismis first started by shifting the beltV 2.5 or like driving means.A

' The, filled pans are then placed upon the table 26 and pushed into engaging' relation 4with the conveyer chains, it being noted that the inclination is lsuch as to correctly position the pans relative to the conveyer. As fast as one setof pans is carried-forward into theovenpanother set follows until the capacity lof the oven is reached. When this occurs the operator shifts the driving means" to bring the conveyer-to rest, in which'posioven oor'and not vin contact therewith. Y ving ,the iforegoing operation pressure d is acting onthe pistons 11 thus holdfor' n the conveyer mechanism in raised posi-Av *t Qn the pans are suspendedabove the hearth baked andthe heat -ivoijlrs upward through i the dough. as-it should for the best resultslf" isrpagain admitted to :the cylinders 12- 'tQ I `6II1`0.\-e the pans from .contact relation vwlth the. ovenfloor, vthe conveyr' lis again started and-'as cnej set of pans'is removed at ffdischarge vend'*another set containing j fresh v dough 1s fed. inv at the receivingend Tn this manner 'the pans are continuouslyfed'i'nto the oven, baked'and removedthefre-h from-wliile the mixing room is maintained 4separate'and*distinct from the bread room thus avoiding' confusion and eliminating a' ,large number of employees. i

- In` order to prevent vas far 'as 'possibleanA draftthrough the ovenv when being charged.4 -I preferably provi'dega suspended baffle of asbestos or like material adjacent the dis'` charge end-of the oven and whiclrfforms subfv f stantially a partition between the'main oven portion and the exit end. By'this construe? tion a large amount of heat and heated vapor; otherwise wasted, is' saved.

'l'It will now .beapparent that I have des vised acompleteuni'tary structure particularly adaptedv for the purpose'inten'ded and embodying' 'a simple and effective const-ruction'to the desired end.

It will further be apparent that the pans of dough are automatically carried or con# veyed into and throughthe oven whereby the 4oven may be -illed economically and Furthermore the end is attained of simultaneously dischargingV with great facility.

the baked product while the feeding or filling operation is in progress, operative at opposite sides of the oven working in unison and as'fast as one set of pans is delivered another set is placed in the oven. Thus when f vall thevpa'ns containing baked bread are re moved the oven is again in chargedI condition and the doors maybe immediately l' closed and the new charge become baked.

Attention isfespecially directed 'to the coni- -bined feature of the intermittently traveling conveyer .and its raising and lowering construction as 'thereby not only may the pansbe automatically vfed but also brought into contact with the oven Hoor for baking v purposes when'the conveyer is at rest.

I am aware thatit h as heretofore been proposed in the patent to Pfenninger No. L173,018,

AprillQ, 1892, to provide rails for supporting the pansin a bakers oven in such a manner that their position relative to the digen floor may be varied and in` the' pateltf'to De lojak a -conveyer passing vthrfnigh 'an oven. "however, desirable in the`A commercial lctiireand. practical use of devices of -actenthatthe parts be madesimple ad 'ongj and constructed injsuch a mant ie.

niggas N0. crasse, Decembepn, 1909, a,

d fla 59X .aittholitilndue manipulatie 4 Utiplicity if-"partslA l. ,A present i hveiition.Y is clearly difierenm.' the fldtenning'e'r andv Be Vaughn tionsaoresaid, as".wil l be apparent i a'iconveyer mechanism .which not vill "rni'tnerhefnotcdthat, the entire dent vczt andentirely separate elements any repairs he'necessary atan'y time, a sirnnleniatter to disconnect the Lmechanisin''ina-y he' drawn out ot cvengor repair-orl-adjnstment of parts. vantage of this construction will vbe apparent, since heretofore ovens erigir-acl; rails'or conveyor mechanism Nreininivesach parts secured or connected s' a part-otthe'hearth' 0r 'oven structure,

aifdays for it to cool "suciently to j; .workmen toenter the oven and make epairs necessary. By my present inntioh, l have avoided all this unnecessary inconvenience 'in making adjust- 1'9 ments or repairs.

it. will lnow be apparent that l have devised-fa novel and'useful 'constructionoi` a hahers oven', lwhichembodies the features eti" advantage ennmerated as desirable in the s temer and while'l have, in the present in. nce, hewn 'and -describedffalpreferred ernoodi'y ent, itis tohe understood that the 'as 'a cr scope of the invention or'sacrificing an? or its'advanta'ges'.

ii* ving thus described my invention, what l .ci atent, 'is 1 door for said 0 v en,`of l a pluralityv of chain eonveyers operatively positioned with re- S .sn-ect to'said hearth and spaced apart to port a container through the oven, means actuating said chains and for starting c stopping the travel-thereof, a container t' bev readily. operated by' f se skilled in the'arhi; since the'same c v nied'ou ii pansth'rough the oven, `intermittentlyoperable -and has la' a 'transverse to its movement,

ver .mechanism and its adjuncts' are infthe ovenfstructnre, and theretore s at;,one'end, so that the entireA therefore incase of repair, it has' been .ary to shut down the oven and wait of the invention andthe above dei sme is 'susceptible -of modilication in varic 'artigiilars without departing from the' aim as new and desire to secure by Letters i i. -lnjga' bread baking oven, the combina.-` n, with Sa heating chamber, and a hearth.

to he supported upon said chains," ineens for raising and lowering said container to deposit the .same npon thev 4up?v pe'rysurface' of said hearth, in suchmanner as 'to canse the same to".,.res,tdirectly upon said surface during thes'tationarycondi yot said chains. i l -V 'in a bread bakingthe combina tionf'with 'aA-heating, chamber, 'and a or floor `for saidoven, of aplfurality of hain conveyers operatively positioned with re- 'sp'eot to .said hearth and 'spacedfapa-rt to` support the'contained-through the oven, means .for actuatingv said chains.. and starting and stopping the travelfthereohn `container adapted 'to' bey supportedupon said chains, andl means vfor raising and lowering 'said chains todeposit the containersupported thereby, directly .uponthe surface of the hearth andin suchmannei'as to cause the sameto rest directly oponfsai'd surface during 'the stationary condition oflsaid chains.

' ln a bread' baking over-i,` the tion witha heating chairmen-and a :hearth or Vdoor for said'ovfen, of a'pluralityoffchain conveyors operatively ,positioned with,t respect to said heart-h' and spaced apartv to `support a container' through the oven, means for actuating said chains and for .starting and stopping the, ltravel thereof, a 'container adapted to besupported uponthe chains to depend therefrom vbelow said chains,- and means for raising and lowering said chains to deposit the container carried' thereby directly npon the upper surface of said hearth and to rest thereupon during the stationary condition of said chains.,4

4. ln a device of the character stated, the combination witha an oven having a heating chamber therethrough, and a hearth or Hoor for said oven having recesses formed therein entending the length of saidjchambervand spaced apart, of a plurality of chain conveyers mounted for movement through-said oven andthronghsaid recesses and adapted*A to support containers thereon, supports for said chain conveyors, a frame mecha-nismcarrying said supports, seatedin said recesses and extending beyond the ends of said oven, means for actuating said chain conveyers and for starting. and stopping the travel thereof.. and means for raising and lowering said frame and supports, whereby said chains are raised and lowered with respect to said hearth to deposit the containers carried thereby directly upon the surface thereof `nor movement* vso ico

" andcoacting mechanism myQbe'eaSIy and quickly ielncved from v the `ven,I fsaid sup'- l Stopping th'egtravel thereof, a coniminer edapted tdbeSupported by said' movable' porting means 'adapted to lraise 'Eind' 'lower ing the stationarycnditcnfbf saidch'ans.'

continere'carrd therebyfdrectly upn vthe surface thereof, and to -rstitherepon dur .,6. a devi'cegvf the ch'arcter stated, A the tainer to', c0ntact: wit11 .np'on' 'the surface ofuthe. hearth. v

`lsaid oven', ofV a movable vcarrier Aoper n.tiye'lyff mgunted with vrespect. to said'hearth., c

y. l l carrier,- a-ndfmeane tofvaryjthe relation off :with respec'zt` to the. said hearthtodeposit-the the container Aand 'hearth' to causev the?,- con-v and 'to directly 

